Adjustable Pressure Sheet Cutting Press

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing sheet punching and embossing machines face productivity issues due to uneven punching pressure distribution, requiring time-consuming adjustments with shims or glue strips to achieve precise force application, leading to prolonged setup times and reduced machine productivity.

Innovation Solution

A sheet punching and embossing machine with adjustable punching or embossing pressure, featuring a device with individually controllable actuator elements, such as electric motors, piezo elements, or hydraulic chambers, integrated into the yoke system to regulate pressure dynamically during operation, allowing for precise pressure adjustment across the entire surface.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Force

If punching force is applied through individual force application points, then the punching machine can process sheets, but the punching force is unevenly distributed over the crucible surface causing improper cutting

Engineering Contradiction:

Improvepunching forceVSAvoidcutting quality

Core Design Contradiction:

ForceVSManufacturing precision

Solution Approach 1:

The punching force application is segmented into multiple independent actuator elements distributed across the crucible surface. Each actuator element can be individually controlled to apply force at its specific location, transforming the single-point force application into a distributed multi-point system that achieves uniform pressure distribution across the entire punching surface.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Each actuator element provides locally optimized force application with individually adjustable parameters. The system allows different regions of the crucible surface to receive tailored force application according to local requirements, ensuring uniform pressure distribution and consistent cutting quality across the entire punching surface.

Inventive Principle:

Principle #3Local quality

2Manufacturing precision

If manual adjustment with shims or glue strips is used to achieve precise force application, then cutting quality can be improved, but setup time increases significantly

Engineering Contradiction:

Improveforce application precisionVSAvoidsetup time

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The manual mechanical adjustment system (shims, glue strips) is replaced with an automated actuator system. Each actuator element can be individually controlled through electronic or hydraulic means to achieve precise force application positioning and pressure control, eliminating the need for time-consuming manual setup while maintaining or improving force application precision.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The static, fixed force application system is transformed into a dynamic, adjustable system. The actuator elements can be individually positioned and controlled during operation, allowing real-time adjustment of force application parameters without requiring machine shutdown or manual intervention, thus reducing setup time while maintaining precision.

Inventive Principle:

Principle #15Dynamics

3Productivity

If the punching machine operates with fixed crucible distance, then the machine structure is simple, but the punching force cannot be adjusted leading to reduced productivity

Engineering Contradiction:

Improvemachine productivityVSAvoidpressure regulation system

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The actuator elements serve multiple functions: they position the upper crucible, regulate punching force, distribute pressure uniformly, and enable dynamic adjustment during operation. This multi-functionality allows the system to achieve high productivity through flexible pressure regulation while keeping the overall structural complexity manageable by consolidating functions into integrated components.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

This solution enables precise and uniform pressure distribution, reducing setup time and increasing machine productivity by allowing real-time adjustment of punching force, ensuring consistent cutting quality without the need for manual trimming or lengthy setup processes.

Implementation Method 1

Each device has at least one actuator element which can be controlled individually and as a result of which the punching or embossing pressure can be regulated during operation of the sheet punching and embossing machine

Methodology Applied

Scientific EffectElectric motor: Linear Motor

Implementation Method 2

Methodology Applied

Scientific EffectPiezoelectric effect: Piezoelectric Effect

Implementation Method 3

Methodology Applied

Scientific EffectHydraulic pressure: Hydraulic Press

Data Source

PatentEP1882564B1Sheet cutting and creasing press with adjustable cutting and creasing pressure

Publication Date: 2012.04.11 HEIDELBERGER DRUCKMASCHINEN AG

Figure 1
Figure 2a~2b
Figure 3a~3c

AI summary

The machine has a punching station (2) including a bottom table (9) that is fixedly arranged in a frame (5) and a top table (10) that is movable against the bottom table. The bottom table is connected to a regulating device (20) for regulating the punching or embossing pressure. The regulating device has approximately a same base surface as the bottom table, where the regulating device is situated between the base surface of the bottom table and the frame. The regulating device causes a deformation of the bottom table and a feeding of the bottom table towards the top table.